At the castle where you start, go left to the owl swing by the tree. Press A and he will make eight sounds: Fart, Burp, Cluck, or Hiccup. Then, press Start and copy each sound he made in order using the following button for each sound to receive a code. Press C-Left for the Fart sound. Press C-Up for the Burp sound. Press C-Right for the Cluck sound. Press C-Down for the Hiccup sound. -From: OxPay10xO@aol.com

Pause the game and press C-Down, C-Up, C-Right(2), C-Down, C-Left, C-Right(2). If you entered the code correctly, Glover will cheer. Then, several cheat codes will be displayed and all six bonus levels will be unlocked.